Advanced Engineer, Combustion

🏢 Hyliion · 📍 Cincinnati, Ohio, United States

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Position Summary & Responsibilities

Hyliion is committed to creating innovative solutions that enable clean, flexible and affordable electricity production. The Company’s primary focus is to develop distributed power generators that can operate on various fuel sources to future-proof against an ever-changing energy economy.

Job Purpose

The Advanced Engineer, Combustion Aerodynamics is a hands-on technical contributor to the research, testing, and development program for the KARNO generator's reactor and oxidation system. This position executes combustion aerodynamics test campaigns, analyzes experimental and simulation data, and supports development and validation of combustion hardware. The position works closely with mechanical, thermal, and performance engineering to translate combustion test data into system design decisions and supports emissions testing in connection with regulatory certification requirements.

AI at Hyliion

At Hyliion, AI is core to how we work. We equip every team member with leading AI tools and count on you to use them — to move faster, solve harder problems, and help us realize the full potential of KARNO technology for the world.

Duties and Responsibilities

Execute combustion aerodynamics test campaigns, including instrumentation setup, experiment execution, data collection, and documentation of results.
Support development and validation of the reactor and oxidation system, including fuel/air mixing characterization, emissions measurement, and heat release analysis.
Operate and maintain laboratory facilities used for combustion aerodynamics system development, and support expansion of lab capability as the program grows.
Apply 1D reactor network models (CANTERA or CHEMKIN) to finite-rate chemistry analysis and correlate simulation predictions with experimental results.
Use CFD tools (ANSYS Fluent or CFX) to support aerodynamic and thermal analysis of combustion and oxidizer geometry.
Support emissions testing and data reporting for regulatory certification efforts, including EPA, CARB, and SCAQMD requirements.
Collaborate with mechanical, thermal, and performance engineering teams, providing combustion data and analysis that informs broader system design decisions.
Participate in technical reviews, inclu

🎯 Candidate Preparation Guide For Hyliion Applicants

Key Role Competencies & Evaluation Highlights

Key Role Focus:

Evaluating sustainable powertrain innovation, electromechanical engineering depth, and commercialization strategies for the heavy-duty commercial vehicle market.

📋 Preparation Priorities (Key Areas to Clarify):

1. Ignoring the total cost of ownership (TCO) calculus that drives commercial fleet purchasing decisions.
2. Showing weak cross-disciplinary collaboration between software teams and heavy mechanical engineers.
3. Presenting overly idealistic green tech theories without a grasp of real-world energy grid and fueling infrastructure limitations.

✨ Recommended Role Alignment Hook:

I engineer practical, electrified powertrain solutions that significantly lower emissions while protecting fleet operators' bottom line.

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